4400664 has 16 divisors (see below), whose sum is σ = 11001720. Its totient is φ = 1466880.

The previous prime is 4400639. The next prime is 4400687. The reversal of 4400664 is 4660044.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 183361 = 4400664 / (4 + 4 + 0 + 0 + 6 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91657 + ... + 91704.

Almost surely, 2^4400664 is an apocalyptic number.

It is an amenable number.

4400664 is an abundant number, since it is smaller than the sum of its proper divisors (6601056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4400664 is a wasteful number, since it uses less digits than its factorization.

4400664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183370 (or 183366 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4400664 is about 2097.7759651593. The cubic root of 4400664 is about 163.8724965741.

The spelling of 4400664 in words is "four million, four hundred thousand, six hundred sixty-four".